Hi @dlee
Can you please double check SW2. From that photo you posted, it seems as if it may stay be in the "ON" position, which would keep it in "EDL" mode and show up as "QUSB_BULK..." instead of an ADB debug device.
Please be sure to follow this step carefully when performing QDL updates:
https://docs.modalai.com/voxl2-qdl/
e7393327-f780-48b8-8b20-4c18a36639ff-image.png
We do not have many HW failures on Voxl2 in the field from routine use, so to have one so soon is surprising. However, if you are confident you are following all instructions and still wish to RMA it, we'll test it again to check for all basic functionality and debug the root cause of the failure, if any, and prompt you for further actions.
Thanks!